Question

Tìm x, biết 

3x-5 /2 = 4x/3

Answer 1

\(\frac{3x-5}{2}=\frac{4x}{3}\)

=>(3x-5).3=4x.2

=>9x-15=8x

=>9x-8x=15

=>x=15

Answer 2

Nếu đề là : \(3x-\frac{5}{2}=\frac{4x}{3}\) thì:

\(\Rightarrow\frac{6x}{2}-\frac{5}{2}=\frac{4x}{3}\Rightarrow\frac{6x-5}{2}=\frac{4x}{3}\)

=>(6x-5).3=4x.2

=>18x-15=8x

=>18x-8x=15

=>10x=15

=>x=15/10=3/2